A MICROPROCESSOR-BASED SIGNAL CONDITIONING SYSTEM FOR A MAGNETIC CONFINEMENT FUSION EXPERIMENT

A signal conditioning system, specially designed for the environment o f a magnetic confinement fusion experiment, is described. This system, implemented in a 6U Eurocard board with four independent and differen tial channels and 12-bit resolution, provides galvanic isolation, ampl ification, integration and filtering functions. A remotely accessed mi croprocessor controls and configures the board parameters and monitors the signal saturation. Laboratory tests have led to results which are in good agreement with the design specifications. This system is bein g successfully used on the tokamak ISTTOK for the conditioning of the diagnostic signals. (C) 1997 Elsevier Science B.V.